The Birthday Paradox for Kids: Why 23 People Share a Birthday

The story of the birthday paradox for kids: why in a room of just 23 people it is more likely than not that two share a birthday, and how Richard von Mises published the idea in 1939.

• Why the question is about any two people, not about matching you
• How counting pairs of people makes the chances grow so fast
• What the maths of chance tells us about coincidences
• Quiz questions to answer along the way

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